forked from TuxCoding/FastLogin
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1 Commits
test
...
drop-proto
| Author | SHA1 | Date | |
|---|---|---|---|
| ba5261a427 |
@ -6,8 +6,6 @@ import com.github.games647.fastlogin.core.shared.LoginSession;
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import java.util.Optional;
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import org.apache.commons.lang.ArrayUtils;
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/**
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* Represents a client connecting to the server.
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*
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@ -15,40 +13,21 @@ import org.apache.commons.lang.ArrayUtils;
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*/
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public class BukkitLoginSession extends LoginSession {
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private final String serverId;
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private final byte[] verifyToken;
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private SkinProperty skinProperty;
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private boolean verified;
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private SkinProperty skinProperty;
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public BukkitLoginSession(String username, String serverId, byte[] verifyToken, boolean registered
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, StoredProfile profile) {
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public BukkitLoginSession(String username, boolean registered, StoredProfile profile) {
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super(username, registered, profile);
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this.serverId = serverId;
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this.verifyToken = ArrayUtils.clone(verifyToken);
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}
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//available for BungeeCord
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public BukkitLoginSession(String username, boolean registered) {
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this(username, "", ArrayUtils.EMPTY_BYTE_ARRAY, registered, null);
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this(username, registered, null);
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}
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//cracked player
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public BukkitLoginSession(String username, StoredProfile profile) {
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this(username, "", ArrayUtils.EMPTY_BYTE_ARRAY, false, profile);
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}
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/**
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* Gets the verify token the server sent to the client.
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*
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* Empty if it's a BungeeCord connection
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*
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* @return the verify token from the server
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*/
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public byte[] getVerifyToken() {
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return ArrayUtils.clone(verifyToken);
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this(username, false, profile);
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}
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/**
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@ -1,121 +0,0 @@
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package com.github.games647.fastlogin.bukkit;
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import java.math.BigInteger;
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import java.nio.charset.StandardCharsets;
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import java.security.GeneralSecurityException;
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import java.security.Key;
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import java.security.KeyPair;
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import java.security.KeyPairGenerator;
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import java.security.MessageDigest;
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import java.security.NoSuchAlgorithmException;
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import java.security.PrivateKey;
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import java.security.PublicKey;
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import java.util.Random;
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import javax.crypto.Cipher;
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import javax.crypto.SecretKey;
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import javax.crypto.spec.SecretKeySpec;
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/**
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* Encryption and decryption minecraft util for connection between servers
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* and paid Minecraft account clients.
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*
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* @see net.minecraft.server.MinecraftEncryption
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*/
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public class EncryptionUtil {
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public static final int VERIFY_TOKEN_LENGTH = 4;
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public static final String KEY_PAIR_ALGORITHM = "RSA";
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private EncryptionUtil() {
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//utility
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}
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/**
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* Generate a RSA key pair
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*
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* @return The RSA key pair.
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*/
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public static KeyPair generateKeyPair() {
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try {
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KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance(KEY_PAIR_ALGORITHM);
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keyPairGenerator.initialize(1_024);
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return keyPairGenerator.generateKeyPair();
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} catch (NoSuchAlgorithmException nosuchalgorithmexception) {
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//Should be existing in every vm
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throw new ExceptionInInitializerError(nosuchalgorithmexception);
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}
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}
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/**
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* Generate a random token. This is used to verify that we are communicating with the same player
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* in a login session.
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*
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* @param random random generator
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* @return an error with 4 bytes long
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*/
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public static byte[] generateVerifyToken(Random random) {
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byte[] token = new byte[VERIFY_TOKEN_LENGTH];
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random.nextBytes(token);
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return token;
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}
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/**
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* Generate the server id based on client and server data.
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*
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* @param sessionId session for the current login attempt
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* @param sharedSecret shared secret between the client and the server
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* @param publicKey public key of the server
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* @return the server id formatted as a hexadecimal string.
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*/
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public static String getServerIdHashString(String sessionId, Key sharedSecret, PublicKey publicKey) {
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try {
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byte[] serverHash = getServerIdHash(sessionId, sharedSecret, publicKey);
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return (new BigInteger(serverHash)).toString(16);
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} catch (NoSuchAlgorithmException e) {
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e.printStackTrace();
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}
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return "";
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}
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/**
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* Decrypts the content and extracts the key spec.
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*
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* @param cipher decryption cipher
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* @param privateKey private key of the server
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* @param sharedKey the encrypted shared key
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* @return shared secret key
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* @throws GeneralSecurityException
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*/
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public static SecretKey decryptSharedKey(Cipher cipher, PrivateKey privateKey, byte[] sharedKey)
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throws GeneralSecurityException {
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return new SecretKeySpec(decrypt(cipher, privateKey, sharedKey), "AES");
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}
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/**
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* Decrypted the given data using the cipher.
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*
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* @param cipher decryption cypher
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* @param key server private key
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* @param data the encrypted data
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* @return clear text data
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* @throws GeneralSecurityException if it fails to initialize and decrypt the data
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*/
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public static byte[] decrypt(Cipher cipher, PrivateKey key, byte[] data) throws GeneralSecurityException {
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cipher.init(Cipher.DECRYPT_MODE, key);
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return cipher.doFinal(data);
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}
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private static byte[] getServerIdHash(String sessionId, Key sharedSecret, PublicKey publicKey)
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throws NoSuchAlgorithmException {
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MessageDigest digest = MessageDigest.getInstance("SHA-1");
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digest.update(sessionId.getBytes(StandardCharsets.ISO_8859_1));
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digest.update(sharedSecret.getEncoded());
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digest.update(publicKey.getEncoded());
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return digest.digest();
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}
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}
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@ -4,8 +4,6 @@ import com.github.games647.fastlogin.bukkit.commands.CrackedCommand;
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import com.github.games647.fastlogin.bukkit.commands.PremiumCommand;
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import com.github.games647.fastlogin.bukkit.listener.BungeeListener;
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import com.github.games647.fastlogin.bukkit.listener.ConnectionListener;
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import com.github.games647.fastlogin.bukkit.listener.protocollib.ProtocolLibListener;
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import com.github.games647.fastlogin.bukkit.listener.protocollib.SkinApplyListener;
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import com.github.games647.fastlogin.bukkit.listener.protocolsupport.ProtocolSupportListener;
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import com.github.games647.fastlogin.bukkit.tasks.DelayedAuthHook;
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import com.github.games647.fastlogin.core.CommonUtil;
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@ -35,7 +33,7 @@ import org.slf4j.Logger;
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public class FastLoginBukkit extends JavaPlugin implements PlatformPlugin<CommandSender> {
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//1 minutes should be enough as a timeout for bad internet connection (Server, Client and Mojang)
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private final ConcurrentMap<String, BukkitLoginSession> loginSession = CommonUtil.buildCache(1, -1);
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private final ConcurrentMap<String, BukkitLoginSession> loginSession = new ConcurrentHashMap<>();
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private final Logger logger = CommonUtil.createLoggerFromJDK(getLogger());
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private final Map<UUID, PremiumStatus> premiumPlayers = new ConcurrentHashMap<>();
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@ -64,8 +62,6 @@ public class FastLoginBukkit extends JavaPlugin implements PlatformPlugin<Comman
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PluginManager pluginManager = getServer().getPluginManager();
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if (bungeeCord) {
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setServerStarted();
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//check for incoming messages from the bungeecord version of this plugin
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getServer().getMessenger().registerIncomingPluginChannel(this, getName(), new BungeeListener(this));
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getServer().getMessenger().registerOutgoingPluginChannel(this, getName());
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@ -77,11 +73,8 @@ public class FastLoginBukkit extends JavaPlugin implements PlatformPlugin<Comman
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if (pluginManager.isPluginEnabled("ProtocolSupport")) {
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pluginManager.registerEvents(new ProtocolSupportListener(this), this);
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} else if (pluginManager.isPluginEnabled("ProtocolLib")) {
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ProtocolLibListener.register(this);
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pluginManager.registerEvents(new SkinApplyListener(this), this);
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} else {
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logger.warn("Either ProtocolLib or ProtocolSupport have to be installed if you don't use BungeeCord");
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logger.warn("ProtocolSupport have to be installed if you don't use BungeeCord");
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}
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}
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@ -148,22 +141,6 @@ public class FastLoginBukkit extends JavaPlugin implements PlatformPlugin<Comman
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return premiumPlayers.getOrDefault(onlinePlayer, PremiumStatus.UNKNOWN);
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}
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/**
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* Wait before the server is fully started. This is workaround, because connections right on startup are not
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* injected by ProtocolLib
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*
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* @return true if ProtocolLib can now intercept packets
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*/
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public boolean isServerFullyStarted() {
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return serverStarted;
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}
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public void setServerStarted() {
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if (!this.serverStarted) {
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this.serverStarted = true;
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}
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}
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public void sendPluginMessage(PluginMessageRecipient player, ChannelMessage message) {
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if (player != null) {
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ByteArrayDataOutput dataOutput = ByteStreams.newDataOutput();
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@ -1,12 +1,9 @@
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package com.github.games647.fastlogin.bukkit;
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import java.util.List;
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import me.clip.placeholderapi.PlaceholderAPI;
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import me.clip.placeholderapi.PlaceholderHook;
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import org.bukkit.entity.Player;
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import org.bukkit.metadata.MetadataValue;
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public class PremiumPlaceholder extends PlaceholderHook {
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@ -19,16 +16,7 @@ public class PremiumPlaceholder extends PlaceholderHook {
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@Override
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public String onPlaceholderRequest(Player player, String variable) {
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if (player != null && "fastlogin_status".contains(variable)) {
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List<MetadataValue> metadata = player.getMetadata(plugin.getName());
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if (metadata == null) {
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return "unknown";
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}
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if (metadata.isEmpty()) {
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return "cracked";
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} else {
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return "premium";
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}
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return plugin.getStatus(player.getUniqueId()).name();
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}
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return "";
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@ -6,11 +6,8 @@ import com.github.games647.fastlogin.bukkit.tasks.ForceLoginTask;
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import org.bukkit.Bukkit;
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import org.bukkit.entity.Player;
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import org.bukkit.event.EventHandler;
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import org.bukkit.event.EventPriority;
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import org.bukkit.event.Listener;
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import org.bukkit.event.player.PlayerJoinEvent;
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import org.bukkit.event.player.PlayerLoginEvent;
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import org.bukkit.event.player.PlayerLoginEvent.Result;
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import org.bukkit.event.player.PlayerQuitEvent;
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/**
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@ -27,13 +24,6 @@ public class ConnectionListener implements Listener {
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this.plugin = plugin;
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}
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@EventHandler(priority = EventPriority.LOWEST)
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public void onPlayerLogin(PlayerLoginEvent loginEvent) {
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if (loginEvent.getResult() == Result.ALLOWED && !plugin.isServerFullyStarted()) {
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loginEvent.disallow(Result.KICK_OTHER, plugin.getCore().getMessage("not-started"));
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}
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}
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@EventHandler(ignoreCancelled = true)
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public void onPlayerJoin(PlayerJoinEvent joinEvent) {
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Player player = joinEvent.getPlayer();
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@ -1,80 +0,0 @@
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package com.github.games647.fastlogin.bukkit.listener.protocollib;
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import com.comphenix.protocol.ProtocolLibrary;
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import com.comphenix.protocol.events.PacketEvent;
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import com.github.games647.fastlogin.bukkit.BukkitLoginSession;
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import com.github.games647.fastlogin.bukkit.FastLoginBukkit;
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import com.github.games647.fastlogin.core.StoredProfile;
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import com.github.games647.fastlogin.core.shared.JoinManagement;
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import java.security.PublicKey;
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import java.util.Random;
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import org.bukkit.command.CommandSender;
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import org.bukkit.entity.Player;
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public class NameCheckTask extends JoinManagement<Player, CommandSender, ProtocolLibLoginSource>
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implements Runnable {
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private final FastLoginBukkit plugin;
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private final PacketEvent packetEvent;
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private final PublicKey publicKey;
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private final Random random;
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private final Player player;
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private final String username;
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public NameCheckTask(FastLoginBukkit plugin, PacketEvent packetEvent, Random random,
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Player player, String username, PublicKey publicKey) {
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super(plugin.getCore(), plugin.getCore().getAuthPluginHook());
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this.plugin = plugin;
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this.packetEvent = packetEvent;
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this.publicKey = publicKey;
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this.random = random;
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this.player = player;
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this.username = username;
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}
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@Override
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public void run() {
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try {
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super.onLogin(username, new ProtocolLibLoginSource(packetEvent, player, random, publicKey));
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} finally {
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ProtocolLibrary.getProtocolManager().getAsynchronousManager().signalPacketTransmission(packetEvent);
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}
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}
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//Minecraft server implementation
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//https://github.com/bergerkiller/CraftSource/blob/master/net.minecraft.server/LoginListener.java#L161
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@Override
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public void requestPremiumLogin(ProtocolLibLoginSource source, StoredProfile profile
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, String username, boolean registered) {
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try {
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source.setOnlineMode();
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} catch (Exception ex) {
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plugin.getLog().error("Cannot send encryption packet. Falling back to cracked login for: {}", profile, ex);
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return;
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}
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String ip = player.getAddress().getAddress().getHostAddress();
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core.getPendingLogin().put(ip + username, new Object());
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String serverId = source.getServerId();
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byte[] verify = source.getVerifyToken();
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BukkitLoginSession playerSession = new BukkitLoginSession(username, serverId, verify, registered, profile);
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plugin.getLoginSessions().put(player.getAddress().toString(), playerSession);
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//cancel only if the player has a paid account otherwise login as normal offline player
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synchronized (packetEvent.getAsyncMarker().getProcessingLock()) {
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packetEvent.setCancelled(true);
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}
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}
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@Override
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public void startCrackedSession(ProtocolLibLoginSource source, StoredProfile profile, String username) {
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BukkitLoginSession loginSession = new BukkitLoginSession(username, profile);
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plugin.getLoginSessions().put(player.getAddress().toString(), loginSession);
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}
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}
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@ -1,90 +0,0 @@
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package com.github.games647.fastlogin.bukkit.listener.protocollib;
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import com.comphenix.protocol.PacketType;
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import com.comphenix.protocol.ProtocolLibrary;
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import com.comphenix.protocol.events.PacketAdapter;
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import com.comphenix.protocol.events.PacketContainer;
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import com.comphenix.protocol.events.PacketEvent;
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import com.github.games647.fastlogin.bukkit.EncryptionUtil;
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import com.github.games647.fastlogin.bukkit.FastLoginBukkit;
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import java.security.KeyPair;
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import java.security.SecureRandom;
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import org.bukkit.Bukkit;
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import org.bukkit.entity.Player;
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import static com.comphenix.protocol.PacketType.Login.Client.ENCRYPTION_BEGIN;
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import static com.comphenix.protocol.PacketType.Login.Client.START;
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public class ProtocolLibListener extends PacketAdapter {
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private static final int WORKER_THREADS = 3;
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private final FastLoginBukkit plugin;
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//just create a new once on plugin enable. This used for verify token generation
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private final SecureRandom random = new SecureRandom();
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private final KeyPair keyPair = EncryptionUtil.generateKeyPair();
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public ProtocolLibListener(FastLoginBukkit plugin) {
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//run async in order to not block the server, because we are making api calls to Mojang
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super(params()
|
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.plugin(plugin)
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.types(START, ENCRYPTION_BEGIN)
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.optionAsync());
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this.plugin = plugin;
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}
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public static void register(FastLoginBukkit plugin) {
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//they will be created with a static builder, because otherwise it will throw a NoClassDefFoundError
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ProtocolLibrary.getProtocolManager()
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.getAsynchronousManager()
|
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.registerAsyncHandler(new ProtocolLibListener(plugin))
|
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.start(WORKER_THREADS);
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}
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@Override
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public void onPacketReceiving(PacketEvent packetEvent) {
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if (packetEvent.isCancelled()
|
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|| plugin.getCore().getAuthPluginHook()== null
|
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|| !plugin.isServerFullyStarted()) {
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return;
|
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}
|
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|
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Player sender = packetEvent.getPlayer();
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PacketType packetType = packetEvent.getPacketType();
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if (packetType == START) {
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onLogin(packetEvent, sender);
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} else {
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onEncryptionBegin(packetEvent, sender);
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}
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}
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private void onEncryptionBegin(PacketEvent packetEvent, Player sender) {
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byte[] sharedSecret = packetEvent.getPacket().getByteArrays().read(0);
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packetEvent.getAsyncMarker().incrementProcessingDelay();
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Runnable verifyTask = new VerifyResponseTask(plugin, packetEvent, sender, sharedSecret, keyPair);
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Bukkit.getScheduler().runTaskAsynchronously(plugin, verifyTask);
|
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}
|
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|
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private void onLogin(PacketEvent packetEvent, Player player) {
|
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//this includes ip:port. Should be unique for an incoming login request with a timeout of 2 minutes
|
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String sessionKey = player.getAddress().toString();
|
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|
||||
//remove old data every time on a new login in order to keep the session only for one person
|
||||
plugin.getLoginSessions().remove(sessionKey);
|
||||
|
||||
//player.getName() won't work at this state
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PacketContainer packet = packetEvent.getPacket();
|
||||
|
||||
String username = packet.getGameProfiles().read(0).getName();
|
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plugin.getLog().trace("GameProfile {} with {} connecting", sessionKey, username);
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||||
|
||||
packetEvent.getAsyncMarker().incrementProcessingDelay();
|
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Runnable nameCheckTask = new NameCheckTask(plugin, packetEvent, random, player, username, keyPair.getPublic());
|
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Bukkit.getScheduler().runTaskAsynchronously(plugin, nameCheckTask);
|
||||
}
|
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}
|
||||
@ -1,101 +0,0 @@
|
||||
package com.github.games647.fastlogin.bukkit.listener.protocollib;
|
||||
|
||||
import com.comphenix.protocol.ProtocolLibrary;
|
||||
import com.comphenix.protocol.ProtocolManager;
|
||||
import com.comphenix.protocol.events.PacketContainer;
|
||||
import com.comphenix.protocol.events.PacketEvent;
|
||||
import com.comphenix.protocol.wrappers.WrappedChatComponent;
|
||||
import com.github.games647.fastlogin.bukkit.EncryptionUtil;
|
||||
import com.github.games647.fastlogin.core.shared.LoginSource;
|
||||
|
||||
import java.lang.reflect.InvocationTargetException;
|
||||
import java.net.InetSocketAddress;
|
||||
import java.security.PublicKey;
|
||||
import java.util.Arrays;
|
||||
import java.util.Random;
|
||||
|
||||
import org.apache.commons.lang.ArrayUtils;
|
||||
import org.bukkit.entity.Player;
|
||||
|
||||
import static com.comphenix.protocol.PacketType.Login.Server.DISCONNECT;
|
||||
import static com.comphenix.protocol.PacketType.Login.Server.ENCRYPTION_BEGIN;
|
||||
|
||||
public class ProtocolLibLoginSource implements LoginSource {
|
||||
|
||||
private final PacketEvent packetEvent;
|
||||
private final Player player;
|
||||
|
||||
private final Random random;
|
||||
private final PublicKey publicKey;
|
||||
|
||||
private final String serverId = "";
|
||||
private byte[] verifyToken;
|
||||
|
||||
public ProtocolLibLoginSource(PacketEvent packetEvent, Player player, Random random, PublicKey publicKey) {
|
||||
this.packetEvent = packetEvent;
|
||||
this.player = player;
|
||||
this.random = random;
|
||||
this.publicKey = publicKey;
|
||||
}
|
||||
|
||||
@Override
|
||||
public void setOnlineMode() throws Exception {
|
||||
verifyToken = EncryptionUtil.generateVerifyToken(random);
|
||||
|
||||
/*
|
||||
* Packet Information: http://wiki.vg/Protocol#Encryption_Request
|
||||
*
|
||||
* ServerID="" (String) key=public server key verifyToken=random 4 byte array
|
||||
*/
|
||||
PacketContainer newPacket = new PacketContainer(ENCRYPTION_BEGIN);
|
||||
|
||||
newPacket.getStrings().write(0, serverId);
|
||||
newPacket.getSpecificModifier(PublicKey.class).write(0, publicKey);
|
||||
|
||||
newPacket.getByteArrays().write(0, verifyToken);
|
||||
|
||||
//serverId is a empty string
|
||||
ProtocolLibrary.getProtocolManager().sendServerPacket(player, newPacket);
|
||||
}
|
||||
|
||||
@Override
|
||||
public void kick(String message) throws InvocationTargetException {
|
||||
ProtocolManager protocolManager = ProtocolLibrary.getProtocolManager();
|
||||
|
||||
PacketContainer kickPacket = new PacketContainer(DISCONNECT);
|
||||
kickPacket.getChatComponents().write(0, WrappedChatComponent.fromText(message));
|
||||
|
||||
try {
|
||||
//send kick packet at login state
|
||||
//the normal event.getPlayer.kickPlayer(String) method does only work at play state
|
||||
protocolManager.sendServerPacket(player, kickPacket);
|
||||
} finally {
|
||||
//tell the server that we want to close the connection
|
||||
player.kickPlayer("Disconnect");
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public InetSocketAddress getAddress() {
|
||||
return packetEvent.getPlayer().getAddress();
|
||||
}
|
||||
|
||||
public String getServerId() {
|
||||
return serverId;
|
||||
}
|
||||
|
||||
public byte[] getVerifyToken() {
|
||||
return ArrayUtils.clone(verifyToken);
|
||||
}
|
||||
|
||||
@Override
|
||||
public String toString() {
|
||||
return this.getClass().getSimpleName() + '{' +
|
||||
"packetEvent=" + packetEvent +
|
||||
", player=" + player +
|
||||
", random=" + random +
|
||||
", serverId='" + serverId + '\'' +
|
||||
", verifyToken=" + Arrays.toString(verifyToken) +
|
||||
'}';
|
||||
}
|
||||
}
|
||||
@ -1,70 +0,0 @@
|
||||
package com.github.games647.fastlogin.bukkit.listener.protocollib;
|
||||
|
||||
import com.comphenix.protocol.reflect.MethodUtils;
|
||||
import com.comphenix.protocol.reflect.accessors.Accessors;
|
||||
import com.comphenix.protocol.reflect.accessors.MethodAccessor;
|
||||
import com.comphenix.protocol.utility.MinecraftReflection;
|
||||
import com.comphenix.protocol.wrappers.WrappedGameProfile;
|
||||
import com.comphenix.protocol.wrappers.WrappedSignedProperty;
|
||||
import com.github.games647.craftapi.model.skin.SkinProperty;
|
||||
import com.github.games647.fastlogin.bukkit.BukkitLoginSession;
|
||||
import com.github.games647.fastlogin.bukkit.FastLoginBukkit;
|
||||
|
||||
import java.lang.reflect.InvocationTargetException;
|
||||
|
||||
import org.bukkit.entity.Player;
|
||||
import org.bukkit.event.EventHandler;
|
||||
import org.bukkit.event.EventPriority;
|
||||
import org.bukkit.event.Listener;
|
||||
import org.bukkit.event.player.PlayerLoginEvent;
|
||||
import org.bukkit.event.player.PlayerLoginEvent.Result;
|
||||
|
||||
public class SkinApplyListener implements Listener {
|
||||
|
||||
private static final Class<?> GAME_PROFILE = MinecraftReflection.getGameProfileClass();
|
||||
private static final MethodAccessor GET_PROPERTIES = Accessors.getMethodAccessor(GAME_PROFILE, "getProperties");
|
||||
|
||||
private final FastLoginBukkit plugin;
|
||||
|
||||
public SkinApplyListener(FastLoginBukkit plugin) {
|
||||
this.plugin = plugin;
|
||||
}
|
||||
|
||||
@EventHandler(priority = EventPriority.LOW)
|
||||
//run this on the loginEvent to let skins plugins see the skin like in normal Minecraft behaviour
|
||||
public void onPlayerLogin(PlayerLoginEvent loginEvent) {
|
||||
if (loginEvent.getResult() != Result.ALLOWED) {
|
||||
return;
|
||||
}
|
||||
|
||||
Player player = loginEvent.getPlayer();
|
||||
|
||||
if (plugin.getConfig().getBoolean("forwardSkin")) {
|
||||
//go through every session, because player.getAddress is null
|
||||
//loginEvent.getAddress is just a InetAddress not InetSocketAddress, so not unique enough
|
||||
for (BukkitLoginSession session : plugin.getLoginSessions().values()) {
|
||||
if (session.getUsername().equals(player.getName())) {
|
||||
session.getSkin().ifPresent(skin -> applySkin(player, skin.getValue(), skin.getSignature()));
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private void applySkin(Player player, String skinData, String signature) {
|
||||
WrappedGameProfile gameProfile = WrappedGameProfile.fromPlayer(player);
|
||||
|
||||
WrappedSignedProperty skin = WrappedSignedProperty.fromValues(SkinProperty.TEXTURE_KEY, skinData, signature);
|
||||
try {
|
||||
gameProfile.getProperties().put(SkinProperty.TEXTURE_KEY, skin);
|
||||
} catch (ClassCastException castException) {
|
||||
//Cauldron, MCPC, Thermos, ...
|
||||
Object map = GET_PROPERTIES.invoke(gameProfile.getHandle());
|
||||
try {
|
||||
MethodUtils.invokeMethod(map, "put", new Object[]{SkinProperty.TEXTURE_KEY, skin.getHandle()});
|
||||
} catch (NoSuchMethodException | IllegalAccessException | InvocationTargetException ex) {
|
||||
plugin.getLog().error("Error setting premium skin of: {}", player, ex);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -1,232 +0,0 @@
|
||||
package com.github.games647.fastlogin.bukkit.listener.protocollib;
|
||||
|
||||
import com.comphenix.protocol.ProtocolLibrary;
|
||||
import com.comphenix.protocol.events.PacketContainer;
|
||||
import com.comphenix.protocol.events.PacketEvent;
|
||||
import com.comphenix.protocol.injector.server.TemporaryPlayerFactory;
|
||||
import com.comphenix.protocol.reflect.FieldUtils;
|
||||
import com.comphenix.protocol.reflect.FuzzyReflection;
|
||||
import com.comphenix.protocol.wrappers.WrappedChatComponent;
|
||||
import com.comphenix.protocol.wrappers.WrappedGameProfile;
|
||||
import com.github.games647.craftapi.model.auth.Verification;
|
||||
import com.github.games647.craftapi.model.skin.SkinProperty;
|
||||
import com.github.games647.craftapi.resolver.MojangResolver;
|
||||
import com.github.games647.fastlogin.bukkit.BukkitLoginSession;
|
||||
import com.github.games647.fastlogin.bukkit.EncryptionUtil;
|
||||
import com.github.games647.fastlogin.bukkit.FastLoginBukkit;
|
||||
|
||||
import java.io.IOException;
|
||||
import java.lang.reflect.InvocationTargetException;
|
||||
import java.lang.reflect.Method;
|
||||
import java.net.InetAddress;
|
||||
import java.net.InetSocketAddress;
|
||||
import java.security.GeneralSecurityException;
|
||||
import java.security.KeyPair;
|
||||
import java.security.PrivateKey;
|
||||
import java.util.Arrays;
|
||||
import java.util.Optional;
|
||||
import java.util.UUID;
|
||||
|
||||
import javax.crypto.Cipher;
|
||||
import javax.crypto.SecretKey;
|
||||
|
||||
import org.bukkit.entity.Player;
|
||||
|
||||
import static com.comphenix.protocol.PacketType.Login.Client.START;
|
||||
import static com.comphenix.protocol.PacketType.Login.Server.DISCONNECT;
|
||||
|
||||
public class VerifyResponseTask implements Runnable {
|
||||
|
||||
private final FastLoginBukkit plugin;
|
||||
private final PacketEvent packetEvent;
|
||||
private final KeyPair serverKey;
|
||||
|
||||
private final Player player;
|
||||
|
||||
private final byte[] sharedSecret;
|
||||
|
||||
public VerifyResponseTask(FastLoginBukkit plugin, PacketEvent packetEvent, Player player,
|
||||
byte[] sharedSecret, KeyPair keyPair) {
|
||||
this.plugin = plugin;
|
||||
this.packetEvent = packetEvent;
|
||||
this.player = player;
|
||||
this.sharedSecret = Arrays.copyOf(sharedSecret, sharedSecret.length);
|
||||
this.serverKey = keyPair;
|
||||
}
|
||||
|
||||
@Override
|
||||
public void run() {
|
||||
try {
|
||||
BukkitLoginSession session = plugin.getLoginSessions().get(player.getAddress().toString());
|
||||
if (session == null) {
|
||||
disconnect(plugin.getCore().getMessage("invalid-request"), true
|
||||
, "GameProfile {0} tried to send encryption response at invalid state", player.getAddress());
|
||||
} else {
|
||||
verifyResponse(session);
|
||||
}
|
||||
} finally {
|
||||
//this is a fake packet; it shouldn't be send to the server
|
||||
synchronized (packetEvent.getAsyncMarker().getProcessingLock()) {
|
||||
packetEvent.setCancelled(true);
|
||||
}
|
||||
|
||||
ProtocolLibrary.getProtocolManager().getAsynchronousManager().signalPacketTransmission(packetEvent);
|
||||
}
|
||||
}
|
||||
|
||||
private void verifyResponse(BukkitLoginSession session) {
|
||||
PrivateKey privateKey = serverKey.getPrivate();
|
||||
|
||||
Cipher cipher;
|
||||
SecretKey loginKey;
|
||||
try {
|
||||
cipher = Cipher.getInstance(privateKey.getAlgorithm());
|
||||
|
||||
loginKey = EncryptionUtil.decryptSharedKey(cipher, privateKey, sharedSecret);
|
||||
} catch (GeneralSecurityException securityEx) {
|
||||
disconnect("error-kick", false, "Cannot decrypt received contents", securityEx);
|
||||
return;
|
||||
}
|
||||
|
||||
try {
|
||||
if (!checkVerifyToken(session, cipher, privateKey) || !encryptConnection(loginKey)) {
|
||||
return;
|
||||
}
|
||||
} catch (Exception ex) {
|
||||
disconnect("error-kick", false, "Cannot decrypt received contents", ex);
|
||||
return;
|
||||
}
|
||||
|
||||
String serverId = EncryptionUtil.getServerIdHashString("", loginKey, serverKey.getPublic());
|
||||
|
||||
String username = session.getUsername();
|
||||
InetSocketAddress socketAddress = player.getAddress();
|
||||
try {
|
||||
MojangResolver resolver = plugin.getCore().getResolver();
|
||||
InetAddress address = socketAddress.getAddress();
|
||||
Optional<Verification> response = resolver.hasJoined(username, serverId, address);
|
||||
if (response.isPresent()) {
|
||||
plugin.getLog().info("GameProfile {} has a verified premium account", username);
|
||||
|
||||
SkinProperty[] properties = response.get().getProperties();
|
||||
if (properties.length > 0) {
|
||||
session.setSkinProperty(properties[0]);
|
||||
}
|
||||
|
||||
session.setVerified(true);
|
||||
setPremiumUUID(session.getUuid());
|
||||
|
||||
receiveFakeStartPacket(username);
|
||||
} else {
|
||||
//user tried to fake a authentication
|
||||
disconnect(plugin.getCore().getMessage("invalid-session"), true
|
||||
, "GameProfile {0} ({1}) tried to log in with an invalid session ServerId: {2}"
|
||||
, session.getUsername(), socketAddress, serverId);
|
||||
}
|
||||
} catch (IOException ioEx) {
|
||||
disconnect("error-kick", false, "Failed to connect to sessionserver", ioEx);
|
||||
}
|
||||
}
|
||||
|
||||
private void setPremiumUUID(UUID premiumUUID) {
|
||||
if (plugin.getConfig().getBoolean("premiumUuid") && premiumUUID != null) {
|
||||
try {
|
||||
Object networkManager = getNetworkManager();
|
||||
//https://github.com/bergerkiller/CraftSource/blob/master/net.minecraft.server/NetworkManager.java#L69
|
||||
FieldUtils.writeField(networkManager, "spoofedUUID", premiumUUID, true);
|
||||
} catch (Exception exc) {
|
||||
plugin.getLog().error("Error setting premium uuid of {}", player, exc);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private boolean checkVerifyToken(BukkitLoginSession session, Cipher cipher, PrivateKey privateKey)
|
||||
throws GeneralSecurityException {
|
||||
byte[] requestVerify = session.getVerifyToken();
|
||||
//encrypted verify token
|
||||
byte[] responseVerify = packetEvent.getPacket().getByteArrays().read(1);
|
||||
|
||||
//https://github.com/bergerkiller/CraftSource/blob/master/net.minecraft.server/LoginListener.java#L182
|
||||
if (!Arrays.equals(requestVerify, EncryptionUtil.decrypt(cipher, privateKey, responseVerify))) {
|
||||
//check if the verify token are equal to the server sent one
|
||||
disconnect(plugin.getCore().getMessage("invalid-verify-token"), true
|
||||
, "GameProfile {0} ({1}) tried to login with an invalid verify token. Server: {2} Client: {3}"
|
||||
, session.getUsername(), packetEvent.getPlayer().getAddress(), requestVerify, responseVerify);
|
||||
return false;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
//try to get the networkManager from ProtocolLib
|
||||
private Object getNetworkManager() throws IllegalAccessException, ClassNotFoundException {
|
||||
Object injectorContainer = TemporaryPlayerFactory.getInjectorFromPlayer(player);
|
||||
|
||||
//ChannelInjector
|
||||
Class<?> injectorClass = Class.forName("com.comphenix.protocol.injector.netty.Injector");
|
||||
Object rawInjector = FuzzyReflection.getFieldValue(injectorContainer, injectorClass, true);
|
||||
return FieldUtils.readField(rawInjector, "networkManager", true);
|
||||
}
|
||||
|
||||
private boolean encryptConnection(SecretKey loginKey) throws IllegalArgumentException {
|
||||
try {
|
||||
//get the NMS connection handle of this player
|
||||
Object networkManager = getNetworkManager();
|
||||
|
||||
//try to detect the method by parameters
|
||||
Method encryptMethod = FuzzyReflection
|
||||
.fromObject(networkManager).getMethodByParameters("a", SecretKey.class);
|
||||
|
||||
//encrypt/decrypt following packets
|
||||
//the client expects this behaviour
|
||||
encryptMethod.invoke(networkManager, loginKey);
|
||||
} catch (Exception ex) {
|
||||
disconnect("error-kick", false, "Couldn't enable encryption", ex);
|
||||
return false;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
private void disconnect(String kickReason, boolean debug, String logMessage, Object... arguments) {
|
||||
if (debug) {
|
||||
plugin.getLog().debug(logMessage, arguments);
|
||||
} else {
|
||||
plugin.getLog().error(logMessage, arguments);
|
||||
}
|
||||
|
||||
kickPlayer(plugin.getCore().getMessage(kickReason));
|
||||
}
|
||||
|
||||
private void kickPlayer(String reason) {
|
||||
PacketContainer kickPacket = new PacketContainer(DISCONNECT);
|
||||
kickPacket.getChatComponents().write(0, WrappedChatComponent.fromText(reason));
|
||||
try {
|
||||
//send kick packet at login state
|
||||
//the normal event.getPlayer.kickPlayer(String) method does only work at play state
|
||||
ProtocolLibrary.getProtocolManager().sendServerPacket(player, kickPacket);
|
||||
//tell the server that we want to close the connection
|
||||
player.kickPlayer("Disconnect");
|
||||
} catch (InvocationTargetException ex) {
|
||||
plugin.getLog().error("Error sending kick packet for: {}", player, ex);
|
||||
}
|
||||
}
|
||||
|
||||
//fake a new login packet in order to let the server handle all the other stuff
|
||||
private void receiveFakeStartPacket(String username) {
|
||||
//see StartPacketListener for packet information
|
||||
PacketContainer startPacket = new PacketContainer(START);
|
||||
|
||||
//uuid is ignored by the packet definition
|
||||
WrappedGameProfile fakeProfile = new WrappedGameProfile(UUID.randomUUID(), username);
|
||||
startPacket.getGameProfiles().write(0, fakeProfile);
|
||||
try {
|
||||
//we don't want to handle our own packets so ignore filters
|
||||
ProtocolLibrary.getProtocolManager().recieveClientPacket(player, startPacket, false);
|
||||
} catch (InvocationTargetException | IllegalAccessException ex) {
|
||||
plugin.getLog().warn("Failed to fake a new start packet for: {}", username, ex);
|
||||
//cancel the event in order to prevent the server receiving an invalid packet
|
||||
kickPlayer(plugin.getCore().getMessage("error-kick"));
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -67,8 +67,7 @@ public class ProtocolSupportListener extends JoinManagement<Player, CommandSende
|
||||
String ip = source.getAddress().getAddress().getHostAddress();
|
||||
plugin.getCore().getPendingLogin().put(ip + username, new Object());
|
||||
|
||||
BukkitLoginSession playerSession = new BukkitLoginSession(username, null, null
|
||||
, registered, profile);
|
||||
BukkitLoginSession playerSession = new BukkitLoginSession(username, registered, profile);
|
||||
plugin.getLoginSessions().put(source.getAddress().toString(), playerSession);
|
||||
if (plugin.getConfig().getBoolean("premiumUuid")) {
|
||||
source.getLoginStartEvent().setUseOnlineModeUUID(true);
|
||||
|
||||
@ -36,10 +36,6 @@ public class DelayedAuthHook implements Runnable {
|
||||
+ "and BungeeCord is deactivated. "
|
||||
+ "Either one or both of the checks have to pass in order to use this plugin");
|
||||
}
|
||||
|
||||
if (hookFound) {
|
||||
plugin.setServerStarted();
|
||||
}
|
||||
}
|
||||
|
||||
private boolean isHookFound() {
|
||||
|
||||
@ -1,42 +0,0 @@
|
||||
package com.github.games647.fastlogin.bukkit;
|
||||
|
||||
import java.security.SecureRandom;
|
||||
|
||||
import org.junit.Test;
|
||||
|
||||
import static org.hamcrest.CoreMatchers.is;
|
||||
import static org.hamcrest.CoreMatchers.notNullValue;
|
||||
|
||||
import static org.junit.Assert.assertThat;
|
||||
|
||||
public class EncryptionUtilTest {
|
||||
|
||||
@Test
|
||||
public void testVerifyToken() throws Exception {
|
||||
SecureRandom random = new SecureRandom();
|
||||
byte[] token = EncryptionUtil.generateVerifyToken(random);
|
||||
|
||||
assertThat(token, notNullValue());
|
||||
assertThat(token.length, is(4));
|
||||
}
|
||||
|
||||
// @Test
|
||||
// public void testDecryptSharedSecret() throws Exception {
|
||||
//
|
||||
// }
|
||||
//
|
||||
// @Test
|
||||
// public void testDecryptData() throws Exception {
|
||||
//
|
||||
// }
|
||||
|
||||
// private static SecretKey createNewSharedKey() {
|
||||
// try {
|
||||
// KeyGenerator keygenerator = KeyGenerator.getInstance("AES");
|
||||
// keygenerator.init(128);
|
||||
// return keygenerator.generateKey();
|
||||
// } catch (NoSuchAlgorithmException nosuchalgorithmexception) {
|
||||
// throw new Error(nosuchalgorithmexception);
|
||||
// }
|
||||
// }
|
||||
}
|
||||
Reference in New Issue
Block a user